▎ 摘　　要

In this paper, Fe2O3/reduced graphene oxide (rGO) aerogel with a three-dimensional hierarchical porous structure was prepared by hydrothermal method in one-step, where Fe2O3 nanoparticles (NPs) were uniformly anchored on two sides of rGO nanosheets. In aerogel, rGO support not only dispersed Fe2O3 NPs, but also increased adsorption ability, improved mass diffusion and accelerated electron transfer; namely, synergistic effect was generated by combining rGO and Fe2O3 together. As expected, in photo-Fenton degradation of rhodamine B, Fe2O3/rGO aerogel displayed higher degradation ability than referenced samples. A series of influence factors on degradation efficiencies were investigated. Based on inhibitor tests and controlled experiments, a possible degradation mechanism was proposed. Besides satisfied degradation ability, the aerogel also displayed superior stability and reusability. After 5 recycling runs, both chemical composition and degradation efficiency were well maintained.